RT Journal Article SR Electronic T1 How to Define Baseline Erosiveness to Predict Radiologic Progression in Rheumatoid Arthritis JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1624 OP 1625 DO 10.3899/jrheum.130319 VO 40 IS 9 A1 LING YIN HO A1 DIEDERIK P.C. de ROOY A1 ANNETTE H.M. van der HELM-van MIL YR 2013 UL http://www.jrheum.org/content/40/9/1624.abstract AB